That is incorrect. The Supreme Court stated, "it must be emphasized that religions, and those who adhere to religious doctrines, may continue to advocate with utmost, sincere conviction that, by divine precepts, same-sex marriage should not be condoned. The First Amendment ensures that religious organizations and persons are given proper protection as they seek to teach the principles that are so fulfilling and so central to their lives and faiths, and to their own deep aspirations to continue the family structure they have long revered."

By forcing churches to marry a couple, the government is violating the first amendment. Which in turn, will be against the United States Constitution.